Exhaust purifier



S. SCHNEIDER EXHAUST PURIFIER Aug. 8, l 933.

Filed July 50, 1962 Patented Aug. 8, 1933 V a UNITED STATES;

My invention relates to new and useful imiprovements in an exhaust purifierand'has for one of its objects to provide a'simple and effective means for connection with the exhaust of an internal combustion engineer the like to purify the exhaust products and eliminate the dangerous or sickening constituents thereof before being projected into the atmosphere.

Another object of the inventionis the provision of a casing having two compartments in communication through a restricted passageway or nozzle leading from the primary compartment to alocation intermediate the ends of the secon ary compartment near the bottom thereof.

Another object of this invention is to position a filtering or screening means in the primary compartment so as to'bedisposed across the path0i flow of the products of combustionthrough the device and to provide a liquid'purifyingchemical; in the secondary compartment which will cover the outlet end-of the nozzle or communicating passageway between the two compartments.

A further object of the invention is to include.v

achemical purifier as a part of the filtering or screening element if desired.

A still further object of the invention is to providea screening or filtering element consisting of a porous, compressible material, such as,

a sponge, and more particularly raisin sponge or a bunch of strands of metal orjothcr fibres slidably mounted in the primaryjc'ompa'rtment.

and spring pressed in one direction, 1

With these and other ends in view," this inven-,

tion consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims.

In order that those skilled in .the art toiwhich this invention appertains may-understand how to make and use the same, I willdescribe its construction in details, referring by numerals to the accompanying drawing forming a part of this application, in which:

Fig. 1 is a top plan view, partly in section, of the exhaust purifiei'as contemplated by my invention.

Fig. 2 is a longitudinal section thereof on the line 2-2 of Fig. 1.

In carrying out my invention as herein embodied, 5 represents the exhaust purifier casing including two members or units 6 and 7 of substantially oval'shape joined together end to end to provide a unitary structure.

Both of the members are hollow and form R compartments, the one in member 6 being termed stud bolts, and a gasket "the primary compartment awhile the other willr in placeby suitable fastening devices 14, such as 15 maybe used to pro-' I vide atight 'joint. v The member 7 has an externally threaded nipple. 16 at one end to be screwed into thesocket 11. for connecting "the members together" and forming the casing 5. At the other endof mem- {may be formed into a spout 18. I

In the side of the member 7 is a filling opening "19 normally closed by a screwplug 20 and in the bottom of the same memberfis a drain opening 21i and like the filling opening is 'normallyclosed byv a screw plug 22. w

At the inner or nipple end of the member '7 formed an internal nozzle 23 having its outlet end member 7 near the bottom thereof and'p'rovides, a communication passageway 24 from the primary.

compartment 8 to a point a'considerable distance compartmenti irikthe member 7.

fying chemical 25 contained within the secondary Inorder to prevent undue splashing and spilling of the liquid chemical, a suitable baffle plate or fin 26..is formed'in the outlet 17 and the space between said bafileplate and the lower part of the spout-18 is formed an end wall'27.

Disposed across the inlet end of the nozzle or. positioned between'the two members across the communicating passageway is a screen 28 to pre vent'particles of material, such as rust, carbon or soot entering the secondary compartment 9. 'The "member v6 has'a compressible porous filtering element 29 disposed within the same across the primary compartment8 or at right angles to the longitudinal center of the member .6 and snugly fits the walls of said member to become a barrier to certain constituents, of the products of combustion of an explosive engine or the like.

terminating intermediate the ends of the said lO j The filtering'element 29 is slidable lengthwise I of the member 6, but is normally heldin a posi tion approximately midway between the ends of the primary compartment by a helical spring 30.

As above stated, said filtering element is compressible and porous, therefore it is preferably formed from spongy material and also itis fur ther preferred that it be a metal sponge, although I have found a bunch of metal strands or fibres can be utilized, i

If found desirable, the filtering element 29 may contain a purifying chemical.

In operation the nipple 10, is connected in any suitable manner to the exhaust of an explosive engine. As the products of combustion are expelled they enter the forward part of the primary compartment 8 and contact the filtering element 29. The products of combustion being under pressure will compress the filtering element and close the pores thereof. This will provide an almost, if not complete, barrier for the products of combustion causing solid particles to drop to the bottom of the primary compartment. 7

As soon as the initial force of the expelledprodnets of combustion is dissipated, the filtering element will expand and permit the gases to flow through the filtering element and thence throughthe screen 28 where any particles which happen to pass through the filteringvelement will be arrested and caused todrop into the bottom of the primary compartment although in back of the.

filtering element. 7

The gases will flow through the nozzle 23 to the bottom ofthe liquid chemical 25 through'which said gases will float to the top entering the empty particularly the inner surfaces thereof tapering,

' or the parts therein replaced upon removalof the closure plate '13 while the secondary com partment may be drained or the'liqui'd chemical replenished by simply removing'the screw plugs 22 and'20 respectively. Y

' Of course I do not wish to be limited to the exact details of construction herein illustrated as these may be varied within theilirnits of the appended claims without departing from the spirit of my invention.

Having thus fully described my invention, what 7 I claim as new and useful, is:- v

1. In combination, an oval casing member proor more.

viding a primary compartment with tapering walls and having an access opening in one side, a closure plate for said opening, a nipple at one end for connection to an exhaust, a socket at the opposite end of said member, a second oval casing member providing a secondary compartment and having a filling opening in one side and a drain opening in the bottom, removable means to close said openings, a nipple at one end of said second member for insertion in the socket of the first member to connect said members together and having an outlet at the other end, anozzle formed with the nipple end of the second member and projecting to a point intermediate the ends of said second member near the bottom thereof to form a communicating passageway between the two compartments, a liquid chemical in the secondary compartment in which the outlet end of the nozzle is submerged, a screen disposed across the inlet end of said 1102-- zle, a metal sponge slidably mounted in the primary compartment and disposed across the same, and a spring to normally force said sponge away from the inlet end of the nozzle.

2. The structure in claim 1, in combination with a baffle in the outlet of the second member, and a chemical carried by the sponge. 1

3. An exhaust purifier including a casing for the passage of products of combustion from an explosive engine, said casing having a tapered inner portion opposite an inlet forsaid products of combustionya porous filtering element disposed across. the interior of said casing and forced into the tapered portion by the action of said products of combustion whereby said filtering element will be compressed laterally and longitudinally, and a spring located in said-casing and 'coacting with. the filtering element to movethe latter in the direction opposite to that in which it is moved by the productsrof combustion to permit saidfiltering element to expand to its normal condition. l

4. An exhaust purifier including a casing having'an inlet at one end and an outlet at the opposite end, the outlet end of said casing being, in teriorly tapered whereby the smaller part of the tapered portion, is at the outlet, a compressible porous filtering member mounted in the casing for movement toward and away from the outlet, said filtering element being moved toward the. 

